Veritas File System 5.0 Administrator's Guide (September 2006)

To create a new Sybase database device

Go to the /sybmaster file system:

$ cd /sybmaster

Create the masterdev file and preallocate 100 MB for the file:

$ qiomkfile -s 100m masterdev

You can use this master device while running the sybsetup program or

sybinit script.

To create the master device directly, enter:

$ buildmaster -d masterdev -s 51200

Add a new 500 megabyte database device datadev to the file system /sybdata

on your dataserver:

$ cd /sybdata

$ qiomkfile -s 500m datadev

...

Start the Sybase database:

$ isql -U sa -P sa_password -S dataserver_name

Set up the datadev database device:

1> disk init

2> name = "logical_name",

3> physname = "/sybdata/datadev",

4> vdevno = "device_number",

5> size = 256000

6> go

Enabling and disabling Quick I/O

If the Quick I/O feature is licensed and installed, Quick I/O is enabled by default

when a file system is mounted. The -o qio and -o noqio mount options enable

and disable, respectively, Quick I/O when a file system is mounted.

If Quick I/O is not installed or licensed, a file system mounts by default without

Quick I/O and no error message is displayed. However, if you specify the -o qio

191Quick I/O for Databases

Enabling and disabling Quick I/O